| Quantity | Value | Units | Value | Units |
| Atomic number | 80 | |||
| Atomic mass | 200.59(2) | g mole-1 | ||
| Specific gravity | 13.55 | g cm-3 | ||
| Mean excitation energy | 800.0 | eV | ||
| Minimum ionization | 1.130 | MeV g-1cm2 | 15.31 | MeV cm-1 |
| Nuclear collision length | 113.1 | g cm-2 | 8.346 | cm |
| Nuclear interaction length | 197.5 | g cm-2 | 14.58 | cm |
| Pion collision length | 136.4 | g cm-2 | 10.07 | cm |
| Pion interaction length | 224.1 | g cm-2 | 16.54 | cm |
| Radiation length | 6.44 | g cm-2 | 0.4752 | cm |
| Critical energy | 7.53 | MeV (for e-) | 7.26 | MeV (for e+) |
| Molière radius | 18.12 | g cm-2 | 1.338 | cm |
| Plasma energy ℏωp | 66.98 | eV | ||
| Muon critical energy | 143. | GeV |